Videos

Let's learn more about TCP. So far, we've looked at the handshake process and how sequence numbers work. Now, let's check out how the acknowledgment process works with TCP. After all, this is a critical component of making TCP a connection-oriented, reliable transport protocol. Understanding …

[Read more...] about How TCP Works – Acknowledgment Numbers

TCP is important stuff for network engineers to know. Why? Today's problems aren't so cut-and-dry as they used to be. When a problem strikes, we can't just say "it's not the network" and go along with our day. A core understanding of TCP and how it carries and acknowledges data goes a long way …

[Read more...] about How TCP Works – Sequence Numbers

This video is the first in a series that explains how TCP works using Wireshark. The first step in a TCP Connection is establishing a Handshake. This video shows how TCP does its thing. https://youtu.be/HCHFX5O1IaQ …

[Read more...] about How TCP Works – The Handshake

This session was recorded at Sharkfest 2017 - June 19th at Carnegie Mellon University in Pittsburgh. It delves into the reasons why people blame the network for performance problems, why these issues linger, and how network engineers can solve them using Wireshark. I hope this helps you in …

[Read more...] about Sharkfest 2017 – Winning the Network Blame Game

The delta time column has always been one of the first things to add when configuring Wireshark. It shows the time between displayed packets, or captured packets, depending on how you set it up. It makes finding delays in conversations much easier to do - that is unless you are dealing with a trace …

[Read more...] about Troubleshooting with Wireshark – Finding Delays in TCP Conversations